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Measuring Instruments & Equipment

We offer a complete product range of Falling Weight Deflectometer and Noise Level Meter

Falling Weight Deflectometer

Portable Falling Weight Deflectometer

Loadman-II

This is a light portable device for the measurement of Deflections. The device is easy to handle and can be used on all construction sites and all materials under any condition. It makes possible to measure bearing capacity and compaction ratio of construction layers and constructions in places where other measuring devices cannot be used owing to their size or because of the necessity to use a lorry or a van as a weight and or transportation unit. LOADMAN is also provided with an internal memory and with a keyboard. The data can be transferred to PC via USB connection.

Measuring principle

The deflection caused by the load of a falling weight is measured by an accelerometer. The acceleration is double integrated and thus the deflection can be calculated. The measuring results are given as the maximum deflection, the calculated bearing capacity modulus E, the length of the loading impulse and the percentage (approx.) of the rebound deflection compared to the maximum deflection as well as the compaction ratio, that is the ratio of the second and further on deflections compared to the first measured deflection (effectiveness of compaction).

Range of use

Technically the device can be used on practically all kinds of construction sites to measure bearing capacity and for compaction control on bound, unbound, and special layers; for example, on roads, streets, bridge sites, house building sites, in trenches, on sports fields (football, baseball, tennis, golf, athletics etc.) as well as for laboratory tests of various kinds of materials.

Specificatons

  • Total weight: 16 kg
  • Height:117 cm
  • Diameter: 13 cm
  • Diameter of loading plate(s): 132 mm, 200 mm and 300 mm (option)
  • Falling weight: 10 kg
  • Falling height: 80 cm
  • Operating voltage: 27 V (3 9V batteries)
  • Measuring range: 0.1-5 mm approx.
  • Length of loading/unloading impulse: 25-30 ms approx.
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Noise Level Meter

We have range of world class noise level meters with latest engineering technologies. These meters are manufactured in tandem with global quality standards and set industry guidelines. Used for measuring sound frequency levels in diverse industries including aircraft and metallurgical, these meters are demanded in domestic as well as overseas market. To deliver an error free range to clients, this Sound Level Meter is packed using high-grade packaging materials.

The class of noise level meter is decided from lover and upper limit of tolerance at any frequency.

For class 1 Noise level meter tolerance shows as follows-

  • 1kHz, +/- 1.1dB
  • 20Hz, +/-2.5dB
  • 16Hz, +2.5dB, -4.5 dB
  • 10kHz, +2.6dB, -3.6dB
  • 16kHz, +3.5dB, -17dB

For class 2 Noise level meter tolerance shows as follows-

  • 1kHz, +/- 1.4 dB
  • 20Hz, +/- 3.5 dB
  • 16Hz, +5.5 dB and - dB
  • 10kHz, +5, 6 dB, - dB
  • 16kHz, +6.0 dB, - dB

Features:

  • Prolonged functional life
  • Portable
  • Smooth operation
  • Lightweight
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